About KDJEM.1

KDJEM.1 · 2024-11-28

Defining VCAP VCAP is the digital core supply provided by the internal LDO regulator. VCAP pins are present only on LDO packages (without SMPS). STM32U5 external capacitor on VCAP pin recommendations For the STM32U5 series, the external capacitor on ...

KDJEM.1 · 2024-09-25

Introduction The purpose of this article is to provide some external memories tips and tricks, frequently asked questions, and a list for useful link resources. 1. Overall FAQs for QUADSPI/OCTOSPI/HSPI/XSPI 1.1. How to check whether a device is sup...

KDJEM.1 · 2024-08-05

There are two possible solutions for connecting two quad-SPI memories using only one OCTOSPI interface. Solution 1: Use a dedicated bit in the OCTOSPI_CR register for external memory selection: MSEL bit for STM32H5, STM32U5, and STM32L5 series or FS...

KDJEM.1 · 2024-07-30

Maximum FIFO size with the OCTOSPI interface The FIFO is sized into the targeted product, typically either 32 or 64 bytes depending on the product. Refer to the reference manual to check the maximum size in the "FIFO and data management" section. Co...

KDJEM.1 · 2024-06-10

Introduction This article includes preliminary updates of STM32 MCU reference manuals reported since 1st January 2024. It highlights the current description requiring update and the expected one if available. The purpose of this article is to deliv...

KDJEM.1 · 2024-12-03

Hello @Sanath, Thank you for updating this post. Could you please give more information about your use case? Is the firmware upgrade? On my side, I do not found any specific inputs or any change in OSPI driver to write using OSPI2 and read using OS...

KDJEM.1 · 2024-12-02

Hello @David123, I reported this issue internally for check and fix. Thank you for your contribution to the community. Internal ticket number: 197582 (This is an internal tracking number and is not accessible or usable by customers). Kaouthar

KDJEM.1 · 2024-12-02

Hello @marcsekz, Could you please create a new thread indicating which STM32 you used. Are you used "Generate peripheral initialization as a pair of '.c/.h' files per peripheral" feature? Thank you. Kaouthar

KDJEM.1 · 2024-12-02

Hello @David123 and welcome to the community, Glad to know that your problem is solved. Thank you for reporting this issue and sharing the solution. About the wrong "Memory Size" in EXTMEM_MANAGER configuration, I reported this issue internally. >T...

KDJEM.1 · 2024-12-02

Hello @pm_interrupt_vect, This issue is solved in the STM32CubeMX 6.13.0 version. Thank you for your contribution. Kaouthar

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Recommendations for the external capacitor on VCAP pin (STM32U5)

Overall FAQs for QUADSPI/OCTOSPI/HSPI/XSPI

How to connect two quad-SPI memories using only one OCTOSPI

FAQ: How to configure FIFO with the OCTOSPI interface

STM32 MCU reference manuals: Expected preliminary updates

Re: Issue with RWW Configuration Using OSPI1 and OSPI2 on STM32U5A9J-DK

Re: STM32H7S78-DK External OSPI 32MB RAM is only accessable from 0x90000000 to 0x90400000, 4MB.

Re: STM32U595 timeout in USB_CoreReset()

Re: STM32H7S78-DK External OSPI 32MB RAM is only accessable from 0x90000000 to 0x90400000, 4MB.

Re: B-WB1M-WPAN1: DMA2 not available